@Brad
I have already sent the apport-collect from the host machine.
I am not sure if I could apport-collect from the guest vm because on the
guest I cannot access any network unless I restart the VM.
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yes, i've used the same virtual machines in both cases. everything is
the same except the driver. I switch from virtio to e1000
glance image-update --property hw_vif_model=e1000
Now I relaunch the virtual cluster and everything works perfectly fine.
I've tested with 5 times the load but it does
I changed the VM interface from virtio to e1000 and then I do not get
this problem and the job finishes perfectly fine. Although e1000 may not
be the best solution but at least it doesnt break my setup.
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@serge
Yes. Thats correct.
$ virsh reboot instance-name
or a soft reboot from from inside the vm (while logged in through the
serial console) does the trick. The VM is back online and accessible.
And we can reproduce the process very easily.
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1325560/+attachment/4124283/+files/ProcEnviron.txt
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https://bugs.launchpad.net/bugs/1325560
apport information
** Tags added: apport-collected precise third-party-packages
** Description changed:
Networking breaks after awhile in kvm guests using virtio networking. We
run data intensive jobs on our virtual cluster (OpenStack Grizzly
Installed on Ubuntu 12.04 Server). The job run
** Also affects: qemu
Importance: Undecided
Status: New
** Also affects: libvirt
Importance: Undecided
Status: New
** No longer affects: qemu
** Also affects: linux
Importance: Undecided
Status: New
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Public bug reported:
Networking breaks after awhile in kvm guests using virtio networking. We
run data intensive jobs on our virtual cluster (OpenStack Grizzly
Installed on Ubuntu 12.04 Server). The job runs fine on a single worker
VM (no data transfer involved). As soon as I add more nodes where
Yes, I think it is safe to say that the bug is still around. The VM
loses network connectivity under "enough" load. I, for example can
reproduce this by running a spark job which transfers a few gigabytes of
data between worker VMs. And within a minute one of the VMs lose network
connectivity. If I
